Wireless-telegraph system.



v. 0. DE Ymmomb. WIRELESS TELEGRAPH SYSTEM.

APPLICATION IILED JAE. 2, 1909.

Patented 001;. 5, 1909.

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V. C. DE YBARRONDO. WIRELESS TELEGRAPH SYSTEM.

APPLICATION FILED JANZ, 1909.

Patented 001;. 5, 1909.

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VINCENT C. DE YBARRONDO, OF LOS ANGELES, CALIFORNIA.

WIRELESS-TELEGRAPH SYSTEM.

To (LIZ whom it may concern:

lie it known that I, Vixcex'r C. DE Ynaunoxno,citizenof the llnitedStates, residing at Los Angeles, in the county of Los Angeles and Stateoi California, have invented certain new and useful Improvements inWireless-'lelegraph Hystei11s.ot' which the following s a specification.reference being had therein to th accompanyingdrawing.

This invention relates to improvements in wireless telegraphsyste1ns.and more particularly to the portable type.

It has for one'ot' its objects the provision of a central switch boardequipped with suitable wiring in position to be readily connected withthe aerial and sounding apparatus. 1

Another object. is to provide a swit h whereby the entire system may becut out when desired.

further object is to provide a novel 'l'orin of wiring for the switchboard.

A still further object is tt) construct the h thttlll whereby twoa'erials may be used to dispcn-e with grounding the system.

With these. and other objects. in view, the preferred embodiment of myinvention resides in that construction and arrangement.

ol. parts hereinafter described. illustrated in the accompanynigdrawnigs. and embraced within the scope of the appended claims.

In said.-drawings:--I igure l is a plan view of the system. big. of twoaerials connected to the coherer when the ground is dispensed with. Fig.3 is a similar view with one aerial and the system grounded. Fig. -lis abottom plan view of the switch board. Fig. 5 is a top plan view of thesame. Fig. (3 is aside elevation of the switch hoard. Fig. 7 is'asimilar view of the batten for the wiring. Fig. 8 is a. fragmentaryvertical section of the switch board. Fig. 5) is a side elevation ofone' end of the aerial. and F g. 10 is a. front elevation of one ol theaerial wire stays.

Similar nunicralsbt' reference are employed to designate correspondingparts throughout. i

In carrying out the. invention I provide what. will subsequently betermed a central switch hoard. This member is provided with suitablewiring which may be readily connected with ti 2 aerial through thecoheizer. and is further equipped with connections for the local circuitconsisting of a desired number otlmtteries. a relay, sounderSpecification of Letters Patent.

Patented Oct. 5, 1909.

,Application filed January 2, 1909. Serial No. 470,307.

and decoherer, and is still further provided with a switch, connectingone pole of the battery with a similar pole of the coherer, and by meansof which the system may at any time be rendered inactive.

The switch board consists of a middle section (1), see Fig. 1,preferably of wood or other suitable insulating material, having aplurality of vertical openings, and is provided on its opposite faceswith a number of grooves which terminate-in the said openings, thedisposition of the grooves being such that by a t tive net work isformed on the opposite faces of the board. The major portions of theopenings are arranged parallel with the sides a1 d ends of the middlesection, and in each of these openings is fitted a machine screw (2).the threaded shank of which extends upwardly through the opening and thetop section (3 The latter is preferably of the same material as themiddle section and of a size to cover the upper face of the latter, asshown in Figs. 1. 5 and 8. To the thread ed terminal of each screwprojecting beyond the upper section (3) a binding post (l) is secured.By referring now to Fig. 1 it. will be seen that the opposite terminalsof the coherer (4:) are connected through the wiring (5) and ((3) to twoof the binding posts (4) on one side of the board. and to the other twobinding posts on the saute side of the board the decoherer (T; isconnected by the wires (8) and (9). )u the opposite side of the boardsimilar connection is'es'tablished with the binding posts. the wires(10) and (11) being connected to the coil end of a relay (12), thearmature. end of which is connected to the other two binding posts onthe same side of the board by the wires (13) and (14). Two binding postsare at one end of the boardywhich are connected to the poles of asounder (15) by the wires (l6) and (17). 'hile atthe opposite end theboard is provided with a pair of binding posts which are connected bythe wires (15 and (19) to theopposite poles of a. battery (20).connection between the positive wires leading front the battery isestablished by a. wire (2t) the terminals of which are cared to thepositive binding and contactpost (22) of a switch lever (23), thepivotal point of whiclris connected to the positive wire of the batteryby a wire {24). The wire (21) runs in a diagonally disposed groove onthelower face of the. middle secystcm of erosslng a conipara- Jun the wiredisposed in a diagonal groove on the lower face of themiddle sectionsub-.

stantially parallel with the wire (21).

Connection is established with the opp0 site pole of the battery and theother binding post of the wire leading on thecoil side of the relay bythe wire (26), which crosses the positive connection (24.) between thebinding post and 'pivotal end of the lever (23), in the followingmanner. Suitable openings are formed in the central section on eitherside of the groove in which the wire (2st) is disposed, so that byinserting one end of the wire through one of these openings and thenleading the same over the upper face of the central section and thencedownwardly through the opposite opening, the cross is effectively madewithout the wires touching. A terminal on the opposite side of the relayis connected in the usual manner to the negative post of battery wire(18) by a wire 27 which crosses .the connections (21) and (25) betweenthe coherer and coil side of the relay and battery-in the mannerdescribed .for the connection 26.

lonnection is established with the sounder wires (16) and (17), theother terminal on the armature side of the relay, and the decoherer bythe wires (28) and (29) which cross the connections 21 and 25 similar tothe connection 26. The circuit is completed by the connection 30between'the positive terminals of the coherer and decoherer. Thus itwill be seen when the switch is closed, and a wave enters on the aerial(31), a portion of which passes into the earth by the ground wire (32),the cohcrer will be excited in the usual manner causing the localcircuit'to close and the armature of the relay to be attracted, whichtransmits the current to the sounder and decoherer. When the lattervibrates, .e filings of the coherer separate in the usual manner and thecircuit is opened. It can be seen by the use of two aerials the groundwire (32) may be dispensed with, and it is to be further observed thatany form of sounder or pro duccr, such as a register, may be substitutedfor the sounder (15).

With this device the problem of portable wireless outfits will begreatly simplified, since it can be readily seen that the connectionsfor the various lements are always in position. A batten (33), similarto the top section (3) is designed to be secured over the lower face ofthe middle section (1) whereby greater protection is given the wiring ofthe switch board.

Having thus described my invention what I claim as new is 1. In aportable wireless telegraph system, a central switch board formed ofsuperimposed sections one of the same being provided with oppositelyextending oblique the circuit between the cohcrer and locat receivingcircuit, and a switch on said board to open and close the circuit ofsaid connections.

3. In a wireless telegraph system, a central switch board, consisting ofa middle section having grooves on its opposite faces forming seats forthe wires, a balten covering the grooves on one face of said board, anda section provided with binding posts and a switch on the opposite faceof said 7 board.

4. In a wirelesstelegraph system, a central switch board .:omprising amiddle section having grooves on its opposite faces and verticalopenings whereby a wire disposed in one of said grooves may cross thewire in the adjacent groove by passing through the said verticalopenings, :1 top and bottom covering for said middle section and aswilcll on said top adapted to open and close the circuit of said board.I

5. In a portable wireless ltflugl'illlll system, a coherer, a relay, asounder, a local battery, and a central switch board formed of sectionsone of the same being provided with grooves on its opposite face formingseats for the connections to open and close the circuit to said coherer,relay, sounder and local battery.

In testimony whereof I hereunto allix my signature in presence of twowitnesses.

VINCENT C. DIG YBA tltO NlX).

Witnesses C. M. STEPHENS, I

1 nos. 1H) YnmmoNno.

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